Before finally adopting and certifying any plan, either master or zoning, the planning commission, regional, county, or district, making such plan shall submit such plan to the division of planning of the department of local affairs for advice and recommendations. The director of the division of planning, within thirty days after such submission, shall present his advice and criticism in respect to such plan. Such advice and criticism shall be advisory only, and the commission submitting such plan shall not be bound thereby. If such advice and criticism have not been presented within such period of thirty days, the approval of such plan by the director of the division of planning shall be presumed.
C.R.S. § 30-28-122